1328304 has 20 divisors (see below), whose sum is σ = 3431576. Its totient is φ = 442752.

The previous prime is 1328297. The next prime is 1328311. The reversal of 1328304 is 4038231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1328297) and next prime (1328311).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13789 + ... + 13884.

2^1328304 is an apocalyptic number.

It is an amenable number.

1328304 is an abundant number, since it is smaller than the sum of its proper divisors (2103272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1328304 is a wasteful number, since it uses less digits than its factorization.

1328304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27684 (or 27678 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1328304 is about 1152.5207156490. The cubic root of 1328304 is about 109.9256798253.

The spelling of 1328304 in words is "one million, three hundred twenty-eight thousand, three hundred four".